Improvement in sheaves and rails for sliding doors



` THoMAs M. LYoNs, or Nnw YORK, n. Y.

IMPROVEMENT IIN SHEAVES AND RAILS`FOR SLIDING DQORS.

Specification forming part of Letters Patent No. 115,333, dated May 30, 1871.

' To all whom 4it may concern:

Beit known that I, 'IrroMAs M. Lyons, or the city, county, and State of New York, have invented a new and Improved Shea-ve and ltail for Sliding Doors; and I do hereby de- Vclare that the following is a full, clear, and eX- act description th erect', `which will enable others skilled in the art to make and use the same,

reference being had to the accompanying drawing forming part of this specification, in

Figure 1 represents aA longitudinal vertical lsection of my improved sheave and rail for -into its lower end to sustain it on the rollers.

Finally, the invention consists in the use of adjustable stops forarresting the outward motion of each door. i

Ain the drawing represents the rail or trough i 3 for supporting the door. IIt is made in the form of a plate, c, as wide as the door, with projecting flanges b b at the sides, as is clear- 1y shownin Fig. 3. In ears c c, which are sus- -pended from the sides of the rail, are `hung transverse rollers B B, whose upper rollingA faces are raised slightly above the surface of the plate a, the said plate being perforated for the reception of the rollers, as indicated in Fig. 1. The proportions of"`the rollers, as

compared with the extent of rail in Fig. l, are somewhat exaggerated. The doors C are shod 'l t j at their lower ends with metal soles D. Each sole' is as wide as or narrower than the thickness of the door, and has a narrow projecting rib, which enters a groovecut in the door.

l i From this rib project two or more lugs or pins,

Vdisplacement of the shoe on the door.

e c, laterally,- for preventing the longitudnal he door thus protected rests on the rollers B and between the anges b b. Its motion on the rail will be easy, and its displacement laterally almost impossible. The rail is sunk in the floor so far that the upper edges of the an ges will be about flush with the surface of the carpet on the floor. It will be seen that with this arrangement the carpet can never come under the door as on the ordinary narrow rails now in use, andwill consequently not be injured by the door. The door willnot be weakened by the shoe or sole I), which is the case when the ordinary devices are used. Between the two doors is secured to the rail a projection or stop, f, which arrests each door in the middle of the rail. The outer stop g, for arresting the outward motion of each door, is a short plate itting between the iianges b, and secured by a projecting pin, h, in one of a series of apertures of the rail. The pin h is not in the middle of the stop g,.so that the latter may be reversed to vary the point where the door is arrested. By thus being reversible, and at the same time adjustable in one of a number of apertures, the top can be set at will to arrest the outward motion of the door at any suitable point.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-` 1. The flanged rail or trough.A provided with the rollers B B to constitute a guide and support for a sliding door, as set forth.

2. The sole or shoe D, having the rib d and projecting lug or lugs e, and applied to a sliding door, substantially as and for the purpose 4herein shown and described.

3. The adjustable stop g applied to the flanged rail or trough A to arrest the outward motion of the door, substantially as herein shown and described.

j THOMAS M. LYONS.

Witnesses:

Mosns E. GRAsro, EDWIN N. CRAsro. 

